/*
* Copyright 2008 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.zxing.client.result;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.Result;
/**
* Parses strings of digits that represent a ISBN.
*
* @author jbreiden@google.com (Jeff Breidenbach)
*/
public class ISBNResultParser extends ResultParser {
private ISBNResultParser() {
}
// ISBN-13 For Dummies
// http://www.bisg.org/isbn-13/for.dummies.html
public static ISBNParsedResult parse(Result result) {
BarcodeFormat format = result.getBarcodeFormat();
if (!BarcodeFormat.EAN_13.equals(format)) {
return null;
}
String rawText = result.getText();
if (rawText == null) {
return null;
}
int length = rawText.length();
if (length != 13) {
return null;
}
if (!rawText.startsWith("978") && !rawText.startsWith("979")) {
return null;
}
return new ISBNParsedResult(rawText);
}
}